Pressing-machine.



D. M. COOPER.

PRBSSING MACHINE.

APPLIOATION FILED DBO. 23, 1909.

Patented Aug. 5, 1913.

3 SHEETS-SHEET D. M. COOPER.

PRESSING MACHINE.

APPLIOATION FILED DEC. 23, 1909.

Patented Aug. 5, 1913] 3 SHEETS-SHEET Z.

L J n-uan tor,

D. M. COOPER.

PRESSING MACHINE.

APPLICATION FILED DEG.23,1909.

Patented Aug. 5, 1913 3 SHEETS-SHEET 3.

1/9 bywoom 7% the invention is to DANIEL n. 0062113, or ROCHESTER, NEW YT0 AMERICAN LAUNDRY MACHINERY RATION OF OHIO.

ORK, ASSIGNOR, BY MESN E ASSIGNMENTS,

COMPANY, OF CINCINNATI, 01110, A CORPO- PRESSING-MAGHINE.

Specification of Letters Patent.

Patented Aug. 5,1913.

Application filed December 23, 1909. Serial No. 534,715.

To all whom it may concern:

Be it known that I, DANIEL M. COOPER, of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Pressing- Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part of thisspecification, and to the referencenumerals marked thereon.

The present invention relates to pressing machines of the type in whicha pair of members are movable relatively one toward and from the otherfor the purpose of pressing material between them, and an object ofprovide a construction by which a very great pressure may be obtainedwithout the use of motive power.

Another object of the invention is to provide a pressure applyingmechanism which is durable in use, simple in operation and inexpensiveto manufacture.

'Still another object is to improve that type of pressing machine inwhich a work support is mounted to move into and out of verticalalinement with the pressing head, a novel means being provided forstopping the work supportwhen it is alined with the head, and novelmeans being also employed for releasing the work support after thepressing operation.

To these and other ends the invention consists in certain improvementsand combinations of parts, all as will be hereinafter more fullydescribed, the novel features being pointed out in the .claims at theend of the specification.

In the drawings: Figure 1 is a front. elevation of the machineconstructed in accord-- ance with this invention, parts being brokenaway, and other parts being illpstrated in section; Fig. 2 is an endelevation with parts broken away and parts in section; Fig. 3 is asection on the line a-aof Fi 2; Fig. 4 is a vertical sect-ion of thebase'o the machine showing the mechanism for effecting the relativemovement betweenv the work support and the presser head, and Fig. 5 is adetail view of the locking device which holds the work support invertical alinement with the presser head.

The invention is, in this instance. em-

bodied in a-pressing machine for pressing or ironing wash goods, suchfor instance as shirt bosoms or other similar flat work, but it will beunderstood that the improvements are capable of being embodied in. anypress ing machine operating upon a similar principle.

The present embodiment comprises a 1101- low base 1 having integral arms2 extended outwardly from its upper end and supporting upright rods 3whose upper ends carry a frame 4 having arranged on its under side apresser head 5 which in this instance is heated by any suitable means.

Mounted to turn'upon one of the upright members 3 is a supporting memberhaving one or more supporting arms 6 near the outer end of each of whichis provided a vertical hearing or guide 7. In this guide works adepending portion 8 on the work support 9 which in this instance ispadded as at 10. The work support is prevented from turning in the guide7 by a parallel guide member 11 working in the guide sleeve 12 on thearm 6, a spring 13, if desirable, acting between the work support andits supporting arm 6 to prevent any binding action in the guide 7, dueto an unequal distribution of weight on the work support. The pressureapplying mechanism or mechanism for effecting the relative movementbetween the work support and the presser head comprises preferably atoggle consistwithin the hollow pedestal or base 1. The upper togglemember'14 of this toggle is pivoted at lfi preferably to the swingingmember 17 that is pivoted at 18 at one side of the longitudinal axis ofthe toggle and cooperates with that portion 8 of the work supportdepending through the bearing 7.

By connecting the upper end of the toggle to the swinging member greaterstrength and life for the machine is obtained and the cost of a greatdeal of machine work eliminated. The pivoted member 17 may have guidedthereon an adjustable wedge piece 19 which increases the effectivelength ,of the toggle and is adjusted by any suitable means, as by thescrew 20 turning in the wedge piece and engaging threads in the pivotedmember.

The toga'le is straightened by any suitable ing of link members 14 and15 arranged means but it is preferred to employ a manually operablelever 21 pivoted to the frame of the machine at 22 independently of thetoggle and having a link 23 pivoted thereto and to the joint 24 of thetoggle. It is apparent that when this lever is moved in one direction itwill straighten the toggle and cause the pivoted member to swingupwardly and force the work support toward the presser head 5.Of'course, on the movement of the lever in the other direction the jointof the toggle will be broken and the work support will lower under itsown weight. The lever 21 is held in both positions by a dog 47 slidablyarranged on the lever, controlled by a hand piece 47 a and adapted toenter notches 48 and 49 on a j gle joint. 25

rack or segment 50. This segment also carries a stop 51 to limit theoutward movement of the lever 21 and toggle. The inward movement of thetoggle is limited by cooperating stops 52 and 53 formed on the members14 and 15 in proximity to the tog- ,Ironiug machines of the press typeare usually controlled or operated by girls, and the latter have notsufficient strengt to effeet a proper pressing of the goods with asingle toggle. In this invention in order to obtain greater pressure,there has been combined with a toggle, a swinging member 25 pivotallysupported at its lower end, as at 26, and having its upper end.pivotally connected as at 27 with the lower end of the lower togglemember 15 so as to form a toggle with said lower toggle member. Thistoggle preferably breaks in a direction opposite to that of the toggleformed by the members 14 and 15 so that each toggle may operate withoutaffecting the other. It is preferred to make the lower link or member 25of less length than either the member 14 or the member 15 so thatgreater power may be obtained from the lower togglc. The latter isstraightened preferably by an arm 28 rigid with the lower end of themember 25, being extended forwardly than the rock shaft 26 that formsthe pivot of the member 25 and provided with a trundle 29 at its outerend. Stops 54 and 5.1 formed on the members 15 and 25 may limit theinward movement of the lower toggle and an arm 30 may be extended fromthe rock shaft 26 rearwardly to cooperate with the yielding stop 31on'the frame inorder to limit the outward movement of said lower toggle.The shaft 26 may also have a weighted arm 100 extended rearwardlytherefrom to counterbalance the treadle lever.

'lo effect the breaking of the toggle joint 27 the base 1 has pivotallymounted thereon at. 3; a lever treadle 33 whose rear end 34 cooperateswith the arm 28 in advance of the rock shaft 30 so that when the forwardend of the treadle 33 is depressed the latter will cooperate with arm 28at its rearward end to elevate the said arm 28 and throw the upper endof the member 25 to the rear, thus breaking the lower toggle.

It is desirable to lock the work supportin vertical alinement with thepresser 5 during the movement of the work support toward the presser andto this end a locking plunger 35 may be guided on the pedestal or baseframe 1 and is pressed upwardly by a helical spring 36. Its upper end 37is adapted to enter a notch 38 in the arm 6 and in order to guide thelocking plunger to the notch an inclined surface 39 is provided On thearm and leads to the notch on one side thereof, while on the oppositeside of the notch is arranged a stop 40 which contacts with the end ofthe plunger and prevents the arm 6 from passing the plunger when thelatter is projected. Of course, the plunger ma be drawn out of the notch38 and passed beneath the stop 40 and to this end the lower end of theplunger 35 .is engaged by an arm 41 on the rock shaft 42 which alsocarries an arm 43 connected by a link 44 with the rear end 34 of thetreadle 33, lost motion being permitted betweenthe treadle and the link44 by means of a slot 45 in the link receiving apin 46 on the treadle.lVith this arrangement, the lever of the treadle 33 may be depressed tobreak the lower toggle without affecting the locking device forthe worksupport, but

a further movement of the treadle may be employed for operating thelocking device and thus an additional controlling device for the lockingdevice is not necessary.

In operation, the work is placed upon the work support 9 preferablywhile the latter is out of alinement with the presser 5. The worksupport isthen moved into vertical alinement with the presser and isautomatically stopped and locked in this position by v thespring-pressed locking plunger 35. Theoperative now moves the lever 21toward the machine and the movement straightens the toggle formed by themembers 14 and 15 and causes the work to be placed under an initialpressure. A pressure now placed upon the treadle lever 28 willstraighten the toggle formed by the members 15 and 25 and give a verygreat pressure upon the work. After the work has been subjected to thedesired pressure, the treadle 33 is slightly depressed to break thejoint 27 and the lever 21 then moved in a direction away from themachine, thus breaking the joint 24. A further depression of the treadle33 releases the work support and permits the latter to be shiftedtransversely of its line of movement toward the presser 5.

A machine constructed in accordance with little effort or energy beingexerted by the operative. The movement to and from pressing position isquickly obtained and the parts for accomplishing it are few and not 5liable to breakage. The positioning of the work support in verticalalinement with the presser Sis automatically effected and thelockingthereof is also obtained by an automatic operation. The locking deviceis controlled by a member which also controls another part of themachine, thus making unnecessary the provision of an additionalcontrolling element, and the release of the work support by the lockingdevice cannot be effected except upon the reduction of pressure upon thework.

I claim as my invention! 1. The combination with two relatively movablemembers between which the mate rial is pressed, of mechanism foreffecting the relative movement of the members comprising a toggle,means for operating said toggle, a member pivotally connected to and asupporting one of the toggle members and forming a toggle therewith, andmeans for operating the last named toggle. 7

2. The combination with two relatively movable members between which thematerial is pressed, of mechanism for effecting the relative movement ofthe members comprising aetoggle, a lever pivoted independently of thetoggle members and ,having connection with the knuckle of the toggle, amember pivotally connected to and supporting one of the toggle membersand forminga toggle therewith, and means for operating the last namedtoggle. I

3. The combination with two relatively movable members between which thematerial is pressed, ,of mechanism for effecting the relative movementofthe members comprising a toggle, means for operating said toggle, amember pivotally connected to and supporting one of the toggle membersand forming a toggle therewith, and an arm rigid with said last namedmember for operating the second named toggle.

4. The' combination with two relatively movable members between whichthe material is pressed, of mechanism for effecting the relativemovement of the members com-- prising a toggle, manually operable meansfor operating said toggle, a member pivotally connected to andsupportmgone of the toggle members and forming a toggle therewith, andan arm rigid with said .member formed with a treadle at its free end.

5. The combination with two relatively movable members between which thematerial is pressed, of mechanism for efi'ecting the relative movementofthe members comprising a toggle, means for operating said toggle, amember pivotally supported and having pivotal connection with one of thetoggle members, said member having less length than the toggle membersand forming a toggle with the toggle member to which it is connected,and means for operating the last named toggle.

6. The combination with two relatively movable members between which thematerial is pressed, of mechanism for effecting the relative movement ofthe members comprising a toggle, means for operating said toggle in onedirection to break the joint, a member pivotally connected to andsupporting one of the toggle members and forming a toggle therewith, andmeans for operating the last named toggle in a direction opposite tothat eflected by the first-named toggle-breaking means 'for the purposeof breaking the last mentioned toggle.

7. The combination with two relatively movable members between which thematerial is pressed, of mechanism for effecting 5 the relative movementof the members comprising a toggle, a lever pivoted independently of thetoggle members and having connection with the knuckle of the toggle, apivotally supported member having pivotal connection with the lower endof the lower toggle member and formingea toggle therewith, said memberbeing less in length than the length of the toggle member, and anarmrigidly secured to the pivotally supported member. I

8. The combination with two relatively movable members between which thematerial is pressed, of mechanism for effecting the relative movement ofthe members comprising a toggle, means for operating said toggle, apivotally supported member pivotally connected to the lower end of thelower toggle member and forming a toggle therewith, an arm having atreadle at its outer end and rigidly secured to the lower end of thepivotally supported member, and an independently pivoted treadlecooperating with said armto break the toggle between the pivotallysupported member and' the lower member of the first named toggle.

9. In a pressing machine, the combination with a frame, a platen and apressinghead, said platen and pressing head being movable relatively oneto the other, of a treadle operated lever pivoted on the frame, a togglefor operating the movable part journaled on said lever and a handoperated lever pivoted on the frame and connected to the toggle, saidhand operated lever and treadle operated lever being adapted to beactuated in the ordernamed to first straighten the toggle andsubsequently apply increased power thereto.

10. In'a pressing machine, the combination with 'a'platen, and apressing head, of a three link toggle for moving one of said partsrelatively ,to the other, and separate hand and foot levers acting upondifferent parts of the toggle to control its operation,

moving the work support toward the head' embodying a toggle and a'treadle for straightening the toggle, and an independently mountedtreadle for breaking the toggle having connection with the lockingdevice to release the supporting member.

12. The combination with ahead and a work support, of a supporting;member forthe work support mounted to carry the latter into and out ofvertical alinement with the head, a locking device for holding saidsupporting member so that the latter is alined with the head, mechanismfor movingthe work support toward the head, and a member for controllingsaid mechanism having a lost motion connection with the looking deviceto operate the latter after the movement to control ,said mechanism hasbeen made.

13. The combination with a head and a work support, of a supportingmember for the work support mounted to carry the lat ter into and out ofvertical alinement with the head, a locking device for holding saidsupporting member so that the latter is alined with the head, mechanismfor moving the work support toward the head embodying a toggle and atreadle for the toggle, and a second treadle cooperating with the firstnamed treadle and having a lost motion connection with the lockingdevice.

14. In a pressing machine, the combination with a frame, a platen and amovable pressing head, of a treadle lever journaled on the frame andmovable vertically, and a A hand operated lever journaled on the frameand movable toward and from the operator,-

of a toggle for operating the platen pivotally carried on" the treadlelever and a link connecting the hand lever and to gle.

, DANIEL M. oooPER. Witnesses:

R. A. HAGEN, R. G. STALLKNIGHT.

